BTKT1902D Bestech Knives Malware Framelock CF BlackThe BTKT1902D Malware is a framelock folder built around CPM S35VN stainless steel, a proven blade steel that balances edge retention, corrosion resistance, and ease of maintenance. The 3. 88" black finished blade pairs with a carbon fiber handle and extended tang design for a rigid, lightweight platform suitable for everyday carry or field work. Thumb pull access and a solid pocket clip round out a practical design that works as hard as you need it